Throughout his career, Carliner used immigration law to pursue his goals of civil rights. As a result, the
Virginia Supreme Court's decision that the state had the right "to regulate the marriage relation so that it shall not have a mongrel breed of citizens" would stand until
Loving v. Virginia in 1967. In the late 1950s, he brought lawsuits contesting Virginia's Public Assemblages Act requiring segregation at public meetings. Working with
Frank Kameny, he developed a legal strategy that challenged directly the constitutionality of anti-gay discrimination. In
Scott v. Macy, Carliner tested this strategy by representing Bruce Scott, who had been fired from a federal government job on the grounds of his having been previously arrested for unspecified "homosexual conduct". Chief Judge
David L. Bazelon of the
D.C. Circuit Court of Appeals ruled that Scott's "homosexual conduct" was, without further specification, insufficient proof of "immoral conduct". The case did not create a legal right for gay federal workers not to be fired from their jobs, but, wrote
The Washington Post, "no federal court has gone so far as this opinion in strongly suggesting that homosexual conduct may not be an absolute disqualification for Government jobs." Later, Carliner worked with
Burt Neuborne on the ACLU's
amicus brief in
Boutilier v. INS, a case in which the Supreme Court permitted the government to exclude sexual minorities from the United States. In addition to these cases Carliner represented "World Citizen"
Garry Davis; leftist professor
Staughton Lynd; Romanian engineer and dissident
Nicolae Malaxa; New Orleans mobster
Carlos Marcello; a vending machine company against
Bobby Baker, a close friend and aide to
Lyndon B. Johnson; and the
Unification Church. Over a 50-year career, he also represented hundreds of ordinary immigrants in immigration proceedings. He spent his career in Washington, D.C., working in a small firm with a maximum of one or two other partners, including Jack Wasserman (1950–67),
Charles Gordon (1974–1984), and Carliner's son-in-law, Robert A. Remes (1984–2003). == Political activity ==